Side bearing



Wifnafiaas i. F. OCONNOR.

SIDE BEARING.

,mucmou FILED SEPT. 25, 1919.

1 ,357,81 1 Patented Nov. 2, 1920. F291 UNITED STATES PATENT orrlce JOHN F. OGONNOB, cnioaso, ILLnvcis, ASSIGNOB TO WILLIAM H. MINER, or

CHAZY, NEW YORK.

sinn BEARING.

Application filed September 25, 19-19.

To aZZw/tom it wmycmwc'm Be it known that I, JOHN F. OConnon, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented a certain new and useful Improvement in Side Bearings, of which the following is full, clear, concise, and exact description, reference being had to the accompanying drawings, forming a part of this specification.

This invention relates to improvements in side bearings.

011c object of the invention isto provide a simple and efiicient side bearing for railway cars, which is self-centering, non-shiftable, and relatively inexpensive to manufacture.

The invention furthermore consists in the improvement in the parts and devices and in the novel combination of the parts and devices herein shown, described and made the subject matter of the claims.

In the drawing forming a part of this specification, Figure 1 is a view partly in elevation and partly in section of portions of body and truck bolsters of a railway car showing my improvements in connection therewith. Fig. 2 is a top plan view of the construction shown in Fig. 1. And Fig. 3 is a vertical sectional view taken substantially 011 the line 3-3 of Fig. 1. In Fig. 2 parts of the base casting are broken away in' order to permit all three figures being shown on the same sheet.

In said drawing, 10 denotes the upper part of a truck bolster and 11 the under part of an opposed body bolster. The improved bearing is shown as secured to the truck bolster and comprises, broadly, a housing or retaining member, or base casting A, and an anti-friction element B.

The housing A is provided with a pair of spaced side walls 1212 and rounded integral end walls 13-13. At its bottom, the housing A is provided with perforated corner lugs indicated at 14: by which it is adapted to be riveted or otherwise rigidly secured to the bolster. The bottom wall provides a flat horizontal bearing surface as indicated at 15 for the anti-friction element.

The anti-friction element B, as shown, is of cylindrical outline and consists of an upper section 16 and lower section 17. The two sections 16 and 17 are rigidly united Specification of Letters Patent.

Patented Nov. 2, 1920.

Serial No. 326,123.

preferably by a mortise and tenon joint, the tenon 18 being formed integral with the section 17 and mortised into a suitable socket 19 in the section 16. The tenon 18 is made suiiiciently long so that it extends into a longitudinally arranged opening 20 provided in the section 16 and the parts are held assembled by a cotter 21 extended through the tenon 18 in the manner most clearly shown in Fig. 3. I

l in a side bearing of the type disclosed, it is o f course essential that the anti-friction element return to its central normal position after each actuation, it is also extremely desirable that the anti friction element be prevented from bodily shifting from vibration or other causes so that the anti-friction element will always be in condition to give full travel. I accomplish the results mentioned by the following means. The lower section 17 of the anti-friction element is extended at its ends bevond the ends of the section 16, as indicated at 22-22.'

These end extensions 22 are received in openings 23-23 provided in the side walls 12. The end extensions 22 in outline, comprise an arcuate lower surface 24:, an upper chord surface25 the arc andthe chord being united by curved surfaces 26 of relatively short radius. The outlines of the openings 23ers determinedby the'shape of the end extensions 22 and are generated by the latter in such a way that the rounded ends defined by the curved surfaces 26 are always in contact with the two inclined surfaces 2727 of the openings 28. In other words, the surfaces 27 of the openings 23 in the housing are determined by rolling the anti-friction element to either side of normal and loeating the varying positions of the curved portions 26 of the extension 22. When the parts are constructed in this manner, it is evident that, while the anti-friction element is free to roll, it cannot be shifted bodily and hence cannot be displaced and will always be in a position to perform its full travel. The extended ends 22 of the lower section 17 also perform the additional function of weights or overbalances in returning the anti-friction element B to its normal position after each actuation upon release of the pressure. In this way, the use of all springs is avoided; the device is automatically self-centering under the influence of after which the top section 16 of the element B is applied and secured in place, the parts then being self-locked. I

Although Iliave herein shown and described what I now consider the preferred manner of carrying out the invention, the same is merely illustrative and I conte1nplate all changes and modifications as come within the scope of the claims appended hereto.

I claim: i

1. In an anti-friction bearing, the combination with a hollow retaining member having sidewalls, of an anti-friction element mounted therein, said element being formed in an upper section and a lower separate section rigidly united, the lower one of said sections having its ends extended beyond the ends of the upper section, said retaining member having openings in said side walls thereof to accommodate said extended ends, the openings and extended ends being so formed as to prevent bodily shifting of the anti-friction element with respect to the retaining member.

2. In an anti-friction side bearing, the combination with a retaining member, of an anti-friction element mounted therein and adapted to roll back and forth, said element comprising upper and lower independently formed sections, the lower section thereof being heavier than the upper section and vconstituting an overbalance to effect return of the anti-friction element to normal under the influence of gravity.

3. In an anti-friction side bearing, the combination with a housing having side walls, said side walls being provided. with openings therein, of'an anti-friction element formed in two independent sections rigidly united, one of said sections having its ends extended beyond the ends of the other section and overbalancing the latter, said extended ends working in said side wall openings and cooperating with the latter to prevent bodily shifting of the anti-friction element. V V

In a side bearing, the combination with a hollow housing having side walls provided withvopenings therein, of an anti-friction element having extensions on the ends thereof disposed within said openings, the out lines of said openings corresponding to the lines generated by said extensions as the element is moved to both sides of normal position, said extensions being always in contact with the edges of said opening to thereby prevent bodily shifting of theanti-friction element. x

5. In an anti-friction bearing, the combination with a hollow base casting having side walls provided with openings therein, of a substantially cylindrical roller disposed within said base casting, said roller being formed in two sections rigidly united, the lower section being extended at its ends beyond the other section, and into said openings and constituting an overbalance for the roller, said extended ends being always in contact with the edges of said recesses but permitting movement of the latter therein.

In witness that I claim the foregoing I have hereunto subscribed my name this 8th day of Sept. 1919. V

JOHN F. OGONNOR. 

